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Question :
91.If one wanted to find the probability of ten customer : 1329675

91.If one wanted to find the probability of ten customer arrivals in an hour at a service station, one would generally use the

a.binomial probability distribution

b.Poisson probability distribution

c.hypergeometric probability distribution

d.exponential probability distribution

92.The _____ probability function is based in part on the counting rule for combinations.

a.binomial

b.Poisson

c.hypergeometric

d.exponential

93.To compute the probability that in a random sample of *n* elements, selected without replacement, we will obtain *x* successes, we would use the

a.binomial probability distribution

b.Poisson probability distribution

c.hypergeometric probability distribution

d.exponential probability distribution

94.Experimental outcomes that are based on measurement scales such as time, weight, and distance can be described by _____ random variables.

a.discrete

b.continuous

c.uniform

d.intermittent

95.Which of the following properties of a binomial experiment is called the stationarity property?

a.The experiment consists of *n* identical trials

b.Two outcomes are possible on each trial

c.The probability of success is the same for each trial

d.The trials are independent

96.The function used to compute the probability of *x* successes in *n* trials, when the trials are dependent, is the

a.binomial probability function

b.Poisson probability function

c.hypergeometric probability function

d.exponential probability function

97.The expected value of a random variable is the

a.most probable value

b.simple average of all the possible values

c.median value

d.mean value

98.In a binomial experiment consisting of five trials, the number of different values that *x* (the number of successes) can assume is

a.2

b.5

c.6

d.10

99.A binomial probability distribution with *p* = .3 is

a.negatively skewed

b.symmetrical

c.positively skewed

d.bimodal

100.An example of a bivariate experiment is

a.tossing a coin once

b.rolling a pair of dice

c.winning or losing a football game

d.passing or failing a course

101.Bivariate probabilities are often called

a.union probabilities

b.conditional probabilities

c.marginal probabilities

d.joint probabilities

102.In order to compute a binomial probability we must know all of the following except

a.the probability of success

b.the number of elements in the population

c.the number of trials

d.the value of the random variable

103.A property of the Poisson distribution is that the mean equals the

a.mode

b.median

c.variance

d.standard deviation

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